Implementation (part 2) for  Bug 318071 -  "Go to Language Definition" should be available along more paths
(see comment 2)
note that otdt.ui.help is now an OT-Plug-in, too.
diff --git a/plugins/org.eclipse.objectteams.otdt.ui.help/.classpath b/plugins/org.eclipse.objectteams.otdt.ui.help/.classpath
index 304e861..9b7e6c5 100644
--- a/plugins/org.eclipse.objectteams.otdt.ui.help/.classpath
+++ b/plugins/org.eclipse.objectteams.otdt.ui.help/.classpath
@@ -2,6 +2,7 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>
+	<classpathentry kind="con" path="OTRE"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>